Aux, generator capability questions, propane injection and slack adjusters...

[Doug Engel]

Pokey is NA and I do not run an EGT, so I can't answer that. I tapped into the
house propane tank, ran it unregulated into a propane regulator and then into a
soleniod valve, from there it runs thru copper tubing and into the top of the
air cleaner. I had to fiddle with orifice size and pressure, but am running it
at ablut 5 PSI. Since the regulator contriols flow, the initial problem I had wa
too small an orifice, I don't think you can go too big. I have a switch on the
dash and flip it on at highway speeds or when accelerating, ususally not under
2000 RPM. The difference is subtle, but very apparent. It runs smoother, takes
fuel and accelerates better.
After talking to a chemist friend (who lost me but understood what I had
done), he said it has someting to do with a shorter carbon chain in propane
compared to diesel. The introduction of propane into the fuel/air mixture allows
the diesel to start to burn at a lower temp/sooner and burn more completely.
What I understand is that it should not adversely affect the EGT or engine as a
whole in any way, at least not at the level I run it. In fact at idle, if I turn
it on, the engine actually seems to miss, so there is some point at which the
addition of propane will offset the air/fuel mixture in a negative way, so there
does not seem to be any chance of a "runaway" situation.
I still have to fiddle with the "right" amout. At highway speeds, you can
reach a point where I think you not gaining anything, just using more and
pumping it out the tailpipe.
Doug n' Pokey

davidkerryedwards wrote:
Can you tell us some more about your propane injection system? How is
it set up? Under what circumstances do you use it? What measurable
difference do you experience? Does it raise EGT's? If so, how much?
How hard was the install?

Kerry
82 FC 35
Denver

. I finally got my propane injection
> setup installed. Noticeable power difference, I'm anxious to see how
it
> affects the fuel economy. Doug n' Pokey
> Doug Engel, Gunnison, CO, 1981 FC35SB, "Pokey"
>






Doug Engel, Gunnison, CO. 1981 FC35SB "Pokey"

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